The short answer: Surfer SEO is the best AI SEO tool we’ve tested, and Frase is the best on a budget. This isn’t a 50-item listicle — it’s the short ranked list of tools that survived weeks of real use on live sites, bought with our own money.
The shortlist at a glance
| # | Tool | Rating | Best for | From |
|---|---|---|---|---|
| 1 | Surfer SEO | 4.5 ★ | Content teams · Ben's Pick | $99/mo |
| 2 | Frase | 4.1 ★ | Solo bloggers on a budget | $45/mo |
1. Surfer SEO — best overall (Ben’s Pick)
Surfer SEO is the most complete on-page tool we tested, and it holds our Ben’s Pick for AI SEO. The real-time Content Editor is the best in the category, the SERP analysis is fast and accurate, and the AI drafts are genuinely usable starting points. The catch is price: at $99/mo it only makes sense if you publish often.
Read the full Surfer SEO review, or try Surfer SEO →
2. Frase — best on a budget
Frase delivers about 80% of Surfer’s value at half the price. Its automated content briefs are the best we’ve used at any price, and the optimisation covers the essentials. The editor is less polished and the AI writing is weak — but at $45/mo, solo bloggers and small teams get everything they actually need.
Read the full Frase review, or try Frase →
How we ranked these tools
Every tool here was bought on a normal plan and used on real published content for weeks — see how we test. We score on the same five criteria for every tool: output quality, ease of use, features that matter, value for money, and support & reliability. Tools we tested and wouldn’t recommend don’t appear with a soft rating — they just don’t appear.
Which AI SEO tool should you choose?
Choose Surfer SEO if you ship content weekly and want the best editor and the best results. Choose Frase if budget leads and briefs matter more than polish. Still deciding between the top two? Our Surfer vs Frase head-to-head draws the exact line.